Vehicle mountable lighted warning sign device



FIG. 1 is a front elevational view of a vehicle mountable lighted warning sign device showing my new design;

FIG. 2 is a rear elevational view of the vehicle mountable lighted warning sign device;

FIG. 3 is a side elevational view of the vehicle mountable lighted warning sign device;

FIG. 4 is a top plan view of the vehicle mountable lighted warning sign device;

FIG. 5 is a bottom plan view of the vehicle mountable lighted warning sign device; and,

FIG. 6 is a front perspective view of the vehicle mountable lighted warning sign device.

The word indicia in broken lines are for example purposes only and form no part of the claimed invention. 

The ornamental design for a vehicle mountable lighted warning sign device, as shown and described. 